How to quickly get a list of paired Bluetooth devices?

Question

I need to get a list of paired bluetooth devices (iOS devices) in the same way as the list in the “Bluetooth” section in iOS settings, as shown in the figure below.

Is it possible?
Have you seen applications that perform this function?

I tried the following: link1 , link2 , link3 , link4 , link5 , link6

But nothing helped me get the exact list. Hopefully there should be a way to achieve this. Please help me share my experience. Thanks.

Answer 1

You can get a list of paired / connected devices if you have UUID ads .

dispatch_queue_t centralQueu = dispatch_queue_create("A_NAME", NULL); _centralManager = [[CBCentralManager alloc] initWithDelegate:self queue:centralQueu options: @{CBCentralManagerOptionRestoreIdentifierKey:@"RESTORE_KEY", CBCentralManagerOptionShowPowerAlertKey: @YES}]; _ServiceUUIDs = @[[CBUUID UUIDWithString:@"THE_UUID"]] //the array of CBUUIDs which you are looking for [_centralManager retrieveConnectedPeripheralsWithServices:_ServiceUUIDs] 

You can get the UUIDs of advertisements for BLE devices with some iOS apps, such as LightBlue and nRFConnect

Answer 2

You need to find the service UUID that you are interested in, in my case it works fine,

 NSDictionary *options = [NSDictionary dictionaryWithObjectsAndKeys:[NSNumber numberWithBool:YES], CBCentralManagerScanOptionAllowDuplicatesKey, nil]; [self.centralManager scanForPeripheralsWithServices:@[[CBUUID UUIDWithString:SERVICE_UUID]] options:options]; 

and when he finds a device that advertises the same service UUID, it will appear on the screen that you indicated above.

handle did Discoverperipherel as follows:

 -(void)centralManager:(CBCentralManager *)central didDiscoverPeripheral:(CBPeripheral *)peripheral advertisementData:(NSDictionary *)advertisementData RSSI:(NSNumber *)RSSI{ _discoveredPeripheral = peripheral; if(![self.mRemoteDevices containsObject:_discoveredPeripheral]) { NSArray *peripherels = [self.centralManager retrievePeripheralsWithIdentifiers:@[_discoveredPeripheral.identifier]]; [self.mRemoteDevices addObject:[peripherels objectAtIndex:0]]; } }